Effect of Supporting Conditions on the Fatigue Life of Shaft Based on Product Lifecycle Management

Abstract

An anti-fatigued criterion of annularly breached shaft on mechanical design has been put
forward, and the main factors that affect fatigue life of shaft are discussed. The interrelation of the
main factors and the framework is founded. A new assessment method to fatigue life of shaft has been
put forward according to Corten-Dolan’s theory modified Miner's rule. The effect of supporting
conditions to fatigue life of shaft is discussed and the influencing parameters are obtained. The results
show that the fatigue life of broad support in two sides is longer than that of narrow support in two
sides. The results will establish the base of anti-fatigue design of shaft.